CN100381782C - Electromagnet ultrasonic changer of on-line dynamic detection for defect of rolling stock wheel set - Google Patents
Electromagnet ultrasonic changer of on-line dynamic detection for defect of rolling stock wheel set Download PDFInfo
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- CN100381782C CN100381782C CNB2006100212388A CN200610021238A CN100381782C CN 100381782 C CN100381782 C CN 100381782C CN B2006100212388 A CNB2006100212388 A CN B2006100212388A CN 200610021238 A CN200610021238 A CN 200610021238A CN 100381782 C CN100381782 C CN 100381782C
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- 238000001514 detection method Methods 0.000 title claims abstract description 17
- 230000007547 defect Effects 0.000 title claims abstract description 10
- 238000005096 rolling process Methods 0.000 title claims description 11
- 238000013016 damping Methods 0.000 claims abstract description 6
- 238000003801 milling Methods 0.000 claims abstract description 4
- 230000003044 adaptive effect Effects 0.000 claims description 4
- 230000006378 damage Effects 0.000 abstract description 5
- 238000010168 coupling process Methods 0.000 abstract description 4
- 238000012545 processing Methods 0.000 abstract description 4
- 230000008878 coupling Effects 0.000 abstract description 3
- 238000005859 coupling reaction Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 3
- 230000003137 locomotive effect Effects 0.000 abstract description 2
- 238000005266 casting Methods 0.000 abstract 1
- 230000003321 amplification Effects 0.000 description 9
- 238000003199 nucleic acid amplification method Methods 0.000 description 9
- 230000002950 deficient Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000009659 non-destructive testing Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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Abstract
The present invention discloses an electromagnetic ultrasonic transducer for the on-line dynamic detection of defects of wheel pairs of locomotives and vehicles. A skeleton (4) of the present invention is formed by a whole casting process of media or a milling and processing process, a notch of an E-shaped groove is downward, a high frequency coil (3) is coiled on the E-shaped groove of the skeleton (4), the upper surface (12) of the skeleton (4) is an arc-shaped concave surface which is matched with a tread shape of a wheel (1), and a bracket (9) is arranged under a bottom plate (13) which is connected with the bracket (9) by a damping spring (5). The service life of the high-frequency coil of the electromagnetic ultrasonic transducer is long and is not easy to damage; meanwhile, the electromagnetic coupling efficiency of the high-frequency coil and a measured wheel in high, and the present invention has the advantages of high measuring precision and strong reliability.
Description
Affiliated technical field
The present invention relates to the electromagnet ultrasonic changer that a kind of Non-Destructive Testing field is used, relate in particular to a kind of electromagnet ultrasonic changer that rolling stock wheel uses the online detection of dynamic of thread defect that is used for.
Background technology
Wheel is to being the critical component of locomotive running gear system, and whether wheel exists defective and damage to be directly connected to traffic safety to profile.The great development of railway speed increase and the operation of the high density of rolling stock have accelerated to take turns the right rate of wear.Therefore,, guarantee the safety of train driving, need in time the wheel tread defective to be carried out dynamic nondestructive and detect for avoiding occurring taking turns to defective occurring also in the situation that continues to use.Common wheel adopts piezoelectric ultrasonic transducer to detect to detection mode, piezoelectric ultrasonic transducer produce bulk wave to wheel when detecting, need to carry out radially detecting in the body along the point by point scanning of tread periphery, can't realize that the automatic flyback of taking turns surface and nearly surface detects, thereby can't realize operating the wheel carrying out detection of dynamic.
The structure of the electromagnet ultrasonic changer in Non-Destructive Testing field with principle of work is: utilize magnet to produce one and become level or vertical static state or quasistatic low frequency magnetic field with workpiece for measurement is surperficial, be placed with radio-frequency coil in magnetic field.This radio-frequency coil is by skeletal fixation, and is parallel with the workpiece for measurement surface.The high-frequency signal of external high frequency signal generator flows into radio-frequency coil, produces high frequency magnetic field, produces current vortex at surface of the work and nearly surface induction, and the frequency range of high frequency magnetic field is in the ultrasonic frequency scope.According to Lorentz force principle or magnetostrictive effect, current vortex forms ultrasonic surface wave under the effect in magnetic field, and this surface wave will be propagated along surface of the work and nearly surface, and radio-frequency coil is responded to the ultrasonic surface wave signal that receives reflected back simultaneously.Transducer is to export behind the electric signal with this ultrasonic surface wave conversion of signals, by analyzing and processing equipment it is carried out analyzing and processing, can realize the Non-Destructive Testing to surface of the work and nearly surface state.As seen electromagnet ultrasonic changer can produce automatically the surface wave that detours and propagate along wheel tread and nearly surface thereof, can realize the right detection of dynamic of taking turns in service easily.
But in the wheel tread defective detection of dynamic process of electromagnet ultrasonic changer, the surface distance that requires radio-frequency coil and wheel tread is less than the good coupling of 1mm with the realization electromagnetic signal.And because there is spot corrosion in wheel tread, phenomenon such as peels off continuously, perhaps have other foreign matters to exist, this type of physical boundary conditions limited the electromagnetic acoustic technology at wheel to the application in detecting.And the coil-winding of electromagnet ultrasonic changer also can be in the right contact of wheel, coupling process, because of factors such as machinery, chemistry or heat cause damage.
Existing rolling stock wheel is to electromagnet ultrasonic changer of on-line dynamic detection for defect, and the processing mode that overcomes the above problems is: add filler between coil and surface of the work, radio-frequency coil is protected.But, in long-term use, be subjected to wheel to roll effect, filler easily comes off, and damages radio-frequency coil.Simultaneously, electromagnet ultrasonic changer line coil top is the plane, is that line contacts with the wheel tread of circular arc, the contact weak effect, and coupling efficiency is low, and accuracy of detection is low, poor reliability.
Summary of the invention
Purpose of the present invention just provides a kind of rolling stock wheel to electromagnet ultrasonic changer of on-line dynamic detection for defect, and the long service life of the radio-frequency coil of this electromagnet ultrasonic changer is not fragile; Simultaneously, the electromagnetic coupled efficient height of radio-frequency coil and tested wheel, accuracy of detection height, good reliability.
The present invention solves its technical matters, and the technical scheme that is adopted is: a kind of rolling stock wheel comprises the magnet casing between panel, base plate and panel and the base plate to electromagnet ultrasonic changer of on-line dynamic detection for defect, and magnet casing internal fixation has magnet; Skeleton is located in the rectangular channel of panel, and radio-frequency coil is on skeleton, and its design feature is: integrated poured or Milling Process forms skeleton by medium, and the breach of its E shape groove is downward, and radio-frequency coil is on the E shape groove of skeleton; The upper surface of skeleton is the arc-shaped concave adaptive with wheel tread shape; Floor below is provided with support, and base plate links to each other by damping spring with support.
Compared with prior art, the beneficial effect of technical scheme of the present invention is: adopt monoblock type, the downward skeleton of E shape groove breach, making skeleton be rolled part is monolithic construction with whole skeleton, the part that rolls than existing adding filling material, its ability of bearing pressure obviously strengthens, be difficult for pulverizing radio-frequency coil difficult drop-off, long service life.The upper surface of skeleton is the arc-shaped concave adaptive with wheel tread shape, makes to contact between ultrasonic transducer and the wheel tread by the line contact to change the face contact into, and contact area increases greatly, improves electromagnetic coupled efficient, accuracy of detection height, good reliability.Damping spring between base plate and the support can weaken wheel tread dynamically rolling the impulsive force that in the process electromagnet ultrasonic changer is produced, and effectively protects electromagnet ultrasonic changer, increases the service life; Also make simultaneously to contact closelyr, good between wheel tread and the ultrasonic transducer, further improve electromagnetic coupled efficient.
The bottom of above-mentioned E shape groove and the distance≤1mm of arc-shaped concave.Can guarantee that like this electromagnetic coupled between ultrasonic transducer coil and wheel tread is good.
Above-mentioned support is fixed on the deck, and deck then fastens on the bottom of rail by bolt card.Adopt the mode of deck to realize installing and fixing between the present invention and the track, to the destruction minimum of the existing structure of track.
The invention will be further described below in conjunction with the drawings and specific embodiments.
Description of drawings
Fig. 1 is the main TV structure synoptic diagram of the embodiment of the invention.
Fig. 2 is the side view of Fig. 1.
Fig. 3 is the vertical view of Fig. 1.
Fig. 4 is panel and the skeleton of inside and the broken section enlarged drawing (the B broken section enlarged drawing of Fig. 1) of coil of present embodiment.
Fig. 5 is the cutaway view Amplified image (A of Fig. 3 is to cutaway view Amplified image) of the panel of present embodiment.
Fig. 6 is the circuit theory synoptic diagram of pre-amplification circuit of preposition amplification case 10 inside of present embodiment.
Embodiment
Embodiment
Fig. 1-5 illustrates, a kind of embodiment of the present invention is: a kind of rolling stock wheel is to electromagnet ultrasonic changer of on-line dynamic detection for defect, comprise the magnet casing 8 between panel 2, base plate 13 and panel 2 and the base plate 13, magnet casing 8 internal fixation have magnet 11; Skeleton 4 is located in the rectangular channel of panel 2, and radio-frequency coil 3 is on skeleton 4, and integrated poured or Milling Process forms skeleton 4 by medium, and the breach of its E shape groove is downward, and radio-frequency coil 3 is on the E shape groove of skeleton 4; The upper surface 12 of skeleton 4 is and the adaptive arc-shaped concave of wheel 1 tread contour; Base plate 13 belows are provided with support 9, and base plate 13 links to each other by damping spring 5 with support 9.
The bottom of E shape groove and the distance≤1mm of arc-shaped concave 12.Support 9 is fixed on the deck 6, and 6 of decks are fixed on the bottom of rail by bolt 14 chuckings.Certainly, when reality is used, also can adopt perforate on the web of the rail of track 7, with the bolt mode with the support installing type on track 7, and without deck.
Also be fixed with the preposition amplification case 10 that links to each other with radio-frequency coil 3 on the support 9 of present embodiment.Certainly this preposition amplification case 10 and inner pre-amplification circuit thereof also can place other position, as the top of deck 6.The input end of the pre-amplification circuit of these preposition amplification case 10 inside links to each other with the exit of radio-frequency coil 3, and this circuit can adopt the pre-amplification circuit of various existing supersonic band electric signal, pre-amplification circuit as shown in Figure 6.
The radius of curvature R of the arc-shaped concave 12 of skeleton 4 of the present invention is suitable to the radius-of-curvature of 1 tread rolling circle with wheel, and span is usually at 400mm-700mm.The material of panel 2 can be selected steel for use, also can select other wear-resistant metal materials for use.The used magnet 11 of electromagnet ultrasonic changer both can use DC electromagnet also can adopt permanent magnet.
The present invention improves by the contour structures to erection support 9 and electromagnet ultrasonic changer, can also be applied in the wheel detection system.Remove erection support 9 and damping spring system 5, add handle, then can be applied to wheel in the static defect detecting system.
The present invention is when implementing, and except that the upper surface of skeleton 4 is the arc-shaped concave 12, the part upper surface of the panel 2 adjacent with skeleton 4 also constitutes and the identical arc-shaped concave 12 of skeleton 4 radius-of-curvature and the center of circle.Certainly, also only skeleton 4 upper surfaces are arc-shaped concaves 12, and the upper surface of panel 2 then is not higher than the highest point of arc-shaped concave 12.
Claims (3)
1. a rolling stock wheel comprises the magnet casing (8) between panel (2), base plate (13) and panel (2) and the base plate (13) to electromagnet ultrasonic changer of on-line dynamic detection for defect, and magnet casing (8) internal fixation has magnet (11); Skeleton (4) is located in the rectangular channel of panel (2), radio-frequency coil (3) is on skeleton (4), it is characterized in that: integrated poured or Milling Process forms described skeleton (4) by medium, and the breach of its E shape groove is downward, and radio-frequency coil (3) is on the E shape groove of skeleton (4); The upper surface (12) of skeleton (4) is and the adaptive arc-shaped concave of wheel (1) tread contour; Base plate (13) below is provided with support (9), and base plate (13) links to each other by damping spring (5) with support (9).
2. electromagnet ultrasonic changer according to claim 1 is characterized in that: the distance≤1mm of the bottom of described E shape groove and arc-shaped concave (12).
3. electromagnet ultrasonic changer according to claim 1 is characterized in that: described support (9) is fixed on the deck (6), and deck (6) then is fixed on the bottom of rail by bolt (14) chucking.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100212388A CN100381782C (en) | 2006-06-23 | 2006-06-23 | Electromagnet ultrasonic changer of on-line dynamic detection for defect of rolling stock wheel set |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100212388A CN100381782C (en) | 2006-06-23 | 2006-06-23 | Electromagnet ultrasonic changer of on-line dynamic detection for defect of rolling stock wheel set |
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| Publication Number | Publication Date |
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| CN1869584A CN1869584A (en) | 2006-11-29 |
| CN100381782C true CN100381782C (en) | 2008-04-16 |
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| CNB2006100212388A Active CN100381782C (en) | 2006-06-23 | 2006-06-23 | Electromagnet ultrasonic changer of on-line dynamic detection for defect of rolling stock wheel set |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101788533B (en) * | 2010-04-01 | 2012-05-09 | 西南交通大学 | Self-adapted ultrasonic detector for online flaw detection for train wheel |
| CN102431576A (en) * | 2011-10-13 | 2012-05-02 | 成都主导科技有限责任公司 | Fault dynamic detecting and data processing method and system of wheel set |
| CN107132282A (en) * | 2017-06-26 | 2017-09-05 | 北京海冬青机电设备有限公司 | The automatic detection device and method of a kind of wheel tread wheel rim electromagnetic coupled ultrasound |
| CN111531212B (en) * | 2020-04-02 | 2021-05-28 | 洛阳拓博尔铁路设备有限公司 | Steel rail milling operation device based on software boots and control method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2226305Y (en) * | 1995-04-29 | 1996-05-01 | 武进县鸣凰电子器材厂 | Ultrasonic automatic flaw detection probe for wheel axle |
| US6401044B1 (en) * | 1998-08-04 | 2002-06-04 | Patentes Talgo, S.A. | Installation for the automatic evaluation of the rolling band on wheels of moving trains |
| CN2528675Y (en) * | 2001-06-21 | 2003-01-01 | 北京新联铁科贸有限公司 | Wheel set automatic detection device |
| CN2547602Y (en) * | 2002-06-23 | 2003-04-30 | 缪庆芝 | Ultrasonic probe for detecting train wheel rim |
| CN2554063Y (en) * | 2002-04-18 | 2003-06-04 | 武汉育科超声设备有限责任公司 | Ultrasonic intelligence detection detector for axle of stock |
| CN2919190Y (en) * | 2006-06-23 | 2007-07-04 | 西南交通大学 | Electromagnetic ultrasonic transducer for performing online dynamic vice detecting of rolling stock wheels |
-
2006
- 2006-06-23 CN CNB2006100212388A patent/CN100381782C/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2226305Y (en) * | 1995-04-29 | 1996-05-01 | 武进县鸣凰电子器材厂 | Ultrasonic automatic flaw detection probe for wheel axle |
| US6401044B1 (en) * | 1998-08-04 | 2002-06-04 | Patentes Talgo, S.A. | Installation for the automatic evaluation of the rolling band on wheels of moving trains |
| CN2528675Y (en) * | 2001-06-21 | 2003-01-01 | 北京新联铁科贸有限公司 | Wheel set automatic detection device |
| CN2554063Y (en) * | 2002-04-18 | 2003-06-04 | 武汉育科超声设备有限责任公司 | Ultrasonic intelligence detection detector for axle of stock |
| CN2547602Y (en) * | 2002-06-23 | 2003-04-30 | 缪庆芝 | Ultrasonic probe for detecting train wheel rim |
| CN2919190Y (en) * | 2006-06-23 | 2007-07-04 | 西南交通大学 | Electromagnetic ultrasonic transducer for performing online dynamic vice detecting of rolling stock wheels |
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| CN1869584A (en) | 2006-11-29 |
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Effective date of registration: 20170406 Address after: 610031 Sichuan City, Chengdu Province, No. two North Ring Road, No. 111 Patentee after: Southwest Jiaotong University Patentee after: Wang Li Patentee after: Gao Xiaorong Patentee after: Wang Zeyong Patentee after: Zhao Quanke Address before: 610031 Sichuan City, Chengdu Province, No. two North Ring Road, No. 111 Patentee before: Southwest Jiaotong University |
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Effective date of registration: 20180504 Address after: 100000 1910, 15 floor, Lian Xiang Yuan, Fengtai District, Beijing. Co-patentee after: Chengdu Southwest Jiaotong University Tech Park Management Co., Ltd. Patentee after: Wang Li Co-patentee after: Gao Xiaorong Co-patentee after: Wang Zeyong Co-patentee after: Zhao Quanke Address before: 610031 No. two, section 111, ring road, Chengdu, Sichuan, China Co-patentee before: Wang Li Patentee before: Southwest Jiaotong University Co-patentee before: Gao Xiaorong Co-patentee before: Wang Zeyong Co-patentee before: Zhao Quanke |
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Effective date of registration: 20181025 Address after: 100000 1910, 15 floor, Lian Xiang Yuan, Fengtai District, Beijing. Co-patentee after: Chengdu Southwest Jiaotong University Research Institute Co., Ltd. Patentee after: Wang Li Co-patentee after: Gao Xiaorong Co-patentee after: Wang Zeyong Co-patentee after: Zhao Quanke Address before: 100000 1910, 15 floor, Lian Xiang Yuan, Fengtai District, Beijing. Co-patentee before: Chengdu Southwest Jiaotong University Science and Technology Park Management Co., Ltd. Patentee before: Wang Li Co-patentee before: Gao Xiaorong Co-patentee before: Wang Zeyong Co-patentee before: Zhao Quanke |
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Effective date of registration: 20190213 Address after: 100000 1910, 15 floor, Lian Xiang Yuan, Fengtai District, Beijing. Co-patentee after: Chengdu Leading Science and Technology Co., Ltd. Gao Xiaorong, Wang Zeyong, Zhao Quanke Patentee after: Wang Li Co-patentee after: Gao Xiaorong Co-patentee after: Wang Zeyong Co-patentee after: Zhao Quanke Address before: 100000 1910, 15 floor, Lian Xiang Yuan, Fengtai District, Beijing. Co-patentee before: Gao Xiaorong, Wang Zeyong, Zhao Quanke, Chengdu Southwest Jiaotong University Research Institute Co., Ltd. Patentee before: Wang Li Co-patentee before: Gao Xiaorong Co-patentee before: Wang Zeyong Co-patentee before: Zhao Quanke |
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